Chimney cowl and ventilator



(No Model.)

J.'F. POND. CHIMNEY GOWL AND VENTILATOR.

No. 290,266. Patented Dec. 18, 1883-.

IZZY/0917,4231;

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Linmgnpher. Washinginn. o. c.

JOSEPH F. POND, OF CLEVELAND, OHIO.

CHIMNEY COWL AND VENTILATOR.

SPECIFICATION forming part of Letters Patent No. 290,266, dated December 18, 1883.

Application filed August 9, 1883.

To all whom it may concern:

Be it known that I, J OSEPH F. POND, acitizen of the United States, residing at Cleveland, in the county of Ouyahoga and State of Ohio, have invented certain new and useful Improvements in Chimney Oowls and Ventilators; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

My invention relates to improvements in chimney-cowls; and the novelty consists in the construction, arrangement, and adaptation of parts, as will be more fully hereinafter set forth-rand specifically pointed out in the claims.

The object of the invention is to produce a device which shall be inexpensive of manufacture, simple and efficient in service, of ready adjustment, and durable.

The invention is fully illustrated in the accompanying drawings, which form a part of this specification, and in which.

Figure 1 is a front elevation of the invention as applied to asheet-metal pipe; Fig. 2, avertical central section of the same, and Fig. 3 a detail. Fig. 1 is a detached perspective View of one of the guide-plates.

Referring to the drawings, in which similar letters of reference indicate like parts in all the figures, A designates the upper end of the smoke-chimney or exit-pipe, and B the body-plate of which the cowl-shield is formed. By rivets b a socket-frame, O, is secured to the main shield, and in the upper portion of said frame 0, between it and the shield B, is confined the step 0, one point of which is slipped into a perforation, 0 in the socketframe, and the other held thereto by a screw, 0', as seen in Fig. 3. The step c has a con cave bearing at c for the reception of the pivot end of the pin (1, and this pin has its bearings in a double frame or spider, D, the arms d of which are provided with holes, by means of which the said frame may be se- (Xo model.)

cured to the pipe A. A collar, (P, on the pivot-pin d has a steadying-bearing in the socket-frame O.

H designates metal plates having holes h and a hooked portion, h. When this hooked portion h rests over the upper edge of the pipe, the holes h arbitrarily suggest the location of the cowlthat is to say, when the holes in the frame D and the plates H register, and the hooks of the plates H are engaged over the tops of the pipe, the position of the cowl is decidedwhich will bring lower rear edge of the auxiliary shield slightly below the upper edge of the pipethe position in which the best results are attained. Thus the plates H not only serve as guides to denote the proper adjustment and position of the cowl, but they relieve the rivet-holes of wearing and tearing strain in the pipe A, said pipe being firmly clasped between the arms (1 and the plates.

G designates a drooping vane, secured to the inner under side of the cowl-body, and it is designed to catch the wind and assist in turn ing the shield.

In devices of this kind a difficulty occurs, frequently, from the fact that wind is free to pass between the rear lower edge of the shield and the pipe, and thus destroy the partial vacuum formed within the cowl. I provide against this by an auxiliary shield, F, which extends vertically down from the main shield, to which it is secured, to a point below the upper edge of the pipe A and closely contiguous thereto, partially surrounding the same. This feature I deem to be of much importance.

What I claim as new is- 1. In combination with the main shield B and socket-frame 0, provided with perforation 0", the step 3, having concave-c and being secured at one point by a screw, 0, and the pivot-pin (I, having collar (Z as and for the purposes set forth.

2. In combination with the shield B, open on the side, and pipe A, the auxiliary shield F, located within the shield B, as and for the purposes set forth.

3. In combination with the spider D, having perforated arms d, and the shield B and pipe A,the adjusting and strengthening plates H, having perforations h and hooks h, as and for the purposes set forth.

4. In combination with the shield 13 and socket-frame 0, having aperture 0 the step 0, having one end passed through the said soeket-fra1ne, and screws, as and for the purposes set forth.

In testimony whereof I affix my signature in 10 presence of two witnesses.

JOSEPH F. POND.

W'itn esses:

H. CLAY SMITH, G. P. WEBsTEn. 

